CN107172236B - Sealing combination structure, mobile terminal and processing method of sealing combination structure - Google Patents
Sealing combination structure, mobile terminal and processing method of sealing combination structure Download PDFInfo
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- CN107172236B CN107172236B CN201710374793.7A CN201710374793A CN107172236B CN 107172236 B CN107172236 B CN 107172236B CN 201710374793 A CN201710374793 A CN 201710374793A CN 107172236 B CN107172236 B CN 107172236B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
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- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The embodiment of the invention provides a sealing combination structure, a mobile terminal and a processing method of the sealing combination structure, wherein the sealing combination structure is applied to the mobile terminal and comprises a sealing element and a supporting element made of shape memory alloy, and the supporting element has a high-temperature phase and a low-temperature phase; the outer side wall of the sealing element is provided with a convex rib, and the inner side wall of the sealing element is provided with a low-temperature phase supporting element; the support piece is heated and then deforms at a high temperature to abut against the inner side wall of the sealing piece, the sealing combined structure is applied to the mobile terminal, the convex ribs of the sealing piece can be prevented from deforming towards the direction of the support piece, the accumulated tolerance of each part of the mobile terminal and the sealing piece is compensated, and therefore the sealing effect is achieved, and the waterproof performance is achieved.
Description
Technical Field
The invention relates to the field of sealing combined structures, in particular to a sealing combined structure, a mobile terminal and a processing method of the sealing combined structure.
Background
With the development of the electronic industry, the requirement on the waterproof performance of mobile terminals such as mobile phones is higher and higher at present, and the waterproof performance is mainly realized through the sealing of a sealing element, so that the sealing performance of the sealing element is a key factor influencing the waterproof performance of electronic equipment. However, in the existing structure, the individual parts have tolerance, and the tolerance also exists in the assembling process, so that the sealing performance of the sealing element is easy to be unstable.
However, in actual assembly, due to the tolerance of the dimension of each component after production and manufacture, the fit tolerance exists between the components, and the tolerance accumulation is large. When the height of the convex rib is negative tolerance or the dimension of other parts is negative tolerance, the interference between the convex rib and the battery cover is reduced or does not exist, and finally the sealing effect is unstable.
Disclosure of Invention
In order to solve the above problems, the present invention provides a sealing assembly structure, which includes a sealing member and a support member made of shape memory alloy, wherein the support member has a high temperature phase and a low temperature phase; the outer side wall of the sealing element is provided with a convex rib, and the inner side wall of the sealing element is provided with a low-temperature phase supporting element; the supporting piece is heated and then deforms at a high temperature and abuts against the inner side wall of the sealing piece.
The present invention also provides a mobile terminal, comprising: the battery cover, the functional component, the mainboard upper cover and the sealing combination structure, wherein the sealing combination structure comprises a sealing element and a supporting element made of shape memory alloy, and the supporting element has a high-temperature phase and a low-temperature phase; the outer side wall of the sealing element is provided with a convex rib, and the inner side wall of the sealing element is provided with a low-temperature phase supporting element; the supporting piece is heated and then deforms at a high temperature and abuts against the inner side wall of the sealing piece.
The invention also provides a processing method of the sealing combination structure, which comprises the following steps:
preparing a sealing element, wherein a convex rib is arranged on the outer side wall of the sealing element;
preparing a low-temperature phase support member by using shape memory alloy;
arranging the low-temperature phase support piece on the inner side wall of the sealing piece to obtain the sealing combined structure;
and heating the sealing combined structure, and rightly propping the convex rib of the sealing element to deform downwards or inwards through the stress generated in the process of deforming the high-temperature phase after the supporting element is heated.
Compared with the prior art, the invention has the following advantages:
the invention provides a sealing combination structure which comprises a sealing element and a supporting element made of shape memory alloy, wherein the inner side wall of the sealing element is provided with the supporting element made of the shape memory alloy and in a low-temperature phase, and the supporting element generates stress deformed to a high-temperature phase after being heated by utilizing the characteristic of the shape memory alloy, so that the supporting element is abutted against the sealing element by the stress, the tolerance accumulation of the sealing element is reduced, and the convex rib on the outer side wall of the sealing element is prevented from deforming to the direction of the supporting element, thereby achieving the sealing effect.
Like this, adopt above-mentioned sealed integrated configuration's mobile terminal, assemble sealed integrated configuration and other parts under low temperature state, after the equipment is accomplished, to mobile terminal heat treatment, support piece is to the protruding muscle that the high temperature phase deformation in-process produced just supports top sealing member lateral wall to support piece's direction deformation, and then makes sealing member and mobile terminal's other part cooperations inseparabler, compensates each part and sealing member accumulative tolerance to reach sealed effect.
Drawings
FIG. 1 is a schematic view of a seal assembly according to the present invention;
FIG. 2 illustrates a high temperature phase support according to the present invention;
FIG. 3 illustrates a cryogenic phase support according to the present invention;
FIG. 4 is a schematic view of another seal assembly configuration provided by the present invention;
FIG. 5 is another high temperature phase support provided by the present invention;
FIG. 6 is another cryogenic phase support provided by the present invention;
FIG. 7 is an assembly view of a seal of an embodiment of a mobile terminal provided by the present invention;
FIG. 8 is a flow chart of a method for manufacturing a seal assembly according to the present invention.
Detailed Description
The following describes a specific embodiment of the present invention, which is illustrative, is intended to disclose the operation of the invention, and is not to be construed as further limiting the scope of the claims.
Example one
Referring to fig. 1, it is a schematic view of a sealing assembly structure according to the present invention. The seal assembly includes a seal member 12 and a support member having two states of a high temperature phase and a low temperature phase, wherein the high temperature phase support member 21 is shown with reference to fig. 2, and the low temperature phase support member 22 is shaped as shown with reference to fig. 3.
Preferably, the support is made of a memory alloy with a shape memory effect. The Shape Memory alloy (SMA for short) is a martensitic phase change alloy with very regular atomic arrangement and volume of less than 0.5%, which can deform under the action of external force, and can recover the original Shape under a certain temperature condition when the external force is removed, for example, the deformation of the SMA can be completely eliminated after heating, and the alloy material with the original Shape before the deformation can be recovered, namely, the alloy with the Memory effect. Wherein, the shape memory alloy comprises the following three types: 1) alloy of one-way memory effect: the shape memory alloy deforms at a lower temperature, and can restore the shape before deformation after heating, and the shape memory phenomenon existing only in the heating process is called one-way memory effect; 2) two-way memory effect: the shape of a high-temperature phase can be recovered when some alloys are heated, and the shape of a low-temperature phase can be recovered when the alloys are cooled, which is called a two-way memory effect; 3) whole-course memory effect: the shape of the high-temperature phase is recovered when the alloy is heated, and the shape of the low-temperature phase with the same shape and the opposite orientation is changed when the alloy is cooled, which is called the global memory effect. Shape memory alloys that may be selected for use in embodiments of the present invention include nickel-titanium alloys, gold-cadmium alloys, copper-zinc alloys, and the like.
In an embodiment of the present invention, the sealing element 12 may be a sealing silica gel sleeve, and is mainly sleeved on an outer surface of a component of the electronic device to achieve the dustproof and waterproof effects. The periphery of the outer side wall of the sealing element 12 is provided with a convex rib 15, and the inner side wall of the sealing element 12 is provided with the supporting element at the position corresponding to the convex rib 15. The supporting piece is preferably made of nickel-titanium memory alloy, the finished product is usually in a tubular shape, a rod shape or a plate shape, the supporting piece used for preparing the propping silica gel sleeve does not need to increase processing steps, and the economic cost and the time cost of production are saved. In addition, the memory alloy made of nickel-titanium also has the advantages of no magnetism, wear resistance, corrosion resistance and no toxicity, and the support piece made of the memory alloy and the sealing silica gel sleeve are very suitable for being sleeved on parts needing magnetic interference prevention, such as an earphone socket of electronic equipment.
In the preferred embodiment of the invention, since the support member is mainly used for supporting and resisting the silicone sealing element, the support member is preferably a sheet metal stamping part, and therefore, a plate-shaped nickel-titanium alloy is preferably selected, and the plate-shaped nickel-titanium alloy is rolled into a flat plate shape by a stamping process at a low temperature (-15 ℃), so that no additional process step is needed, and the economic cost and the time cost of production are saved. Thirdly, the thickness of the plate-shaped nickel-titanium alloy ranges from 0.10mm to 20mm, and the support piece made of the plate-shaped nickel-titanium alloy can reduce the occupation of the internal space of the sealing combination structure. Secondly, the supporting piece is preferably made of nickel-titanium alloy with one-way memory effect, the nickel-titanium alloy is deformed into a plate shape at low temperature, and the shape before deformation is recovered after heating; due to the one-way memory effect, even if the sealing combination structure is placed in a cooling environment again (such as returning to normal temperature from high temperature), the support piece can not recover the flat plate shape of the low-temperature phase, so that the sealing performance of the sealing combination structure is ensured. In addition, in order to ensure the function and appearance stability of the electronic equipment, the overall temperature of the electronic equipment is limited by standards, for example, the overall temperature of the mobile phone is required to be maintained at-30 ℃ to 80 ℃, while the preferred one-way memory effect nickel-titanium alloy of the embodiment has a low-temperature phase temperature of about-15 ℃ and a high-temperature phase temperature of about 55 ℃, so that the temperature limit requirements of the electronic equipment such as the mobile phone and the like are met.
Further, as shown in fig. 3, the shape memory alloy is formed into a plate-like low-temperature phase support member 22 at a low temperature; the support member 21, which is heated to form a high temperature phase, is in a wave shape, wherein the valley position of the wave-shaped support member 21 is higher than the two end positions of the support member 21, as shown in fig. 2.
Further, as shown in fig. 1 and 7, the outer side wall of the sealing member 12 is provided with a rib 15, and the rib 15 may be arranged longitudinally or circumferentially; the supporting member is provided on the inner side wall of the sealing member 12 at a position corresponding to the rib 15. Preferably, the inner side wall of the seal 12 is flat and provided with the above-mentioned support 22 for the low-temperature phase. When heat is applied to the sealed assembly, the support member 22 of the low temperature phase is heated and deformed toward the support member 21 of the high temperature phase. However, due to space limitations, the low temperature phase support 22 cannot be completely changed to the shape of the high temperature phase support 21, and only there is a stress that deforms toward the high temperature phase, the direction of the stress being shown by the arrow in fig. 1. Due to this stress, the support bears against the inner side wall of the seal 12, preventing the ribs 15 on the outer side wall of the seal 12 from moving out of position, and also preventing the seal 12 from deforming. Especially when the size of the rib 15 is at the lower limit of the tolerance due to the tolerance accumulation of the sealing element 12, the stress can effectively prevent the rib 15 from moving and dislocating, and the tolerance accumulation is reduced.
The sealing combination structure in the embodiment of the invention has the following advantages: the inner side wall of the sealing element is provided with the support piece made of the shape memory alloy and in the low-temperature phase, the support piece generates stress which deforms towards the high-temperature phase after being heated by utilizing the characteristics of the shape memory alloy, the stress enables the support piece to abut against the sealing element, the tolerance accumulation of the sealing element is reduced, the convex rib on the outer side wall of the sealing element is prevented from deforming towards the direction of the support piece, and therefore the sealing effect is achieved.
Example two
Referring to fig. 4, it is a schematic view of another sealing assembly provided by the present invention, which includes a sealing member 12 and a support member, wherein the support member has two states of a high temperature phase and a low temperature phase, wherein the high temperature phase support member 21 is shown with reference to fig. 5, and the shape of the low temperature phase support member 22 is shown with reference to fig. 6.
The material and thickness of the supporting member are as described in the first embodiment, and are not described herein again.
In an embodiment of the present invention, the sealing element 12 may be a sealing silica gel sleeve, and is mainly sleeved on an outer surface of a component of the electronic device to achieve the dustproof and waterproof effects. The periphery of the outer side wall of the sealing element 12 is provided with a convex rib 15, and the convex rib 15 can be arranged longitudinally or circumferentially; the inner side wall of the sealing element 12 is provided with a concave platform, and the part of the concave platform corresponding to the convex rib 15 is provided with the supporting element. Preferably, the concave portion of the inner sidewall of the sealing member 12 is provided with the low temperature phase supporting member 22, the middle portion of the low temperature phase supporting member 22 is rolled into a flat shape by a stamping process, and both ends thereof are bent in the same direction by a bending process, and the bent angle of the concave portion is consistent with the bent angle of the mating portion (for example, the concave portion) of the inner sidewall of the sealing member, as shown in fig. 6 and 7.
When the sealing assembly is heated, the support member 22 of the low temperature phase is heated and deformed toward the support member 21 of the high temperature phase, and the shape of the support member 21 of the high temperature phase is as shown in fig. 5, in which the middle portion is in a wave shape and the both end portions are in a reverse flat plate shape. Wherein, the position of the wave trough part of the wave-shaped supporting member 21 is higher than the positions of the two ends of the supporting member 21. However, due to space limitation, the low temperature phase support 22 cannot be completely changed into the shape of the high temperature phase support 21, and only there is a stress to deform the high temperature phase, the stress direction is shown by the arrow in fig. 4: the flat surface portion in the middle of the low temperature phase support member 22 has a stress that deforms in a wavy shape in the middle of the high temperature phase support member 21, and the bent portions at both ends of the low temperature phase support member 22 have a stress that deforms in a flat plate shape at both ends of the high temperature phase support member 21. Due to the stress, the support part is pressed against the inner side wall of the sealing part 12, the convex rib 15 on the outer side wall of the sealing part 12 is prevented from moving and dislocating, meanwhile, the sealing part 12 is prevented from deforming, and the tolerance accumulation is reduced.
The sealing combination structure in the embodiment of the invention has the following advantages: the inner side wall of the sealing element is provided with the support piece made of the shape memory alloy and in the low-temperature phase, the support piece generates stress which deforms towards the high-temperature phase after being heated by utilizing the characteristics of the shape memory alloy, the stress enables the support piece to abut against the sealing element, the tolerance accumulation of the sealing element is reduced, the convex rib on the outer side wall of the sealing element is prevented from deforming towards the direction of the support piece, and therefore the sealing effect is achieved.
EXAMPLE III
Referring to fig. 7, a seal assembly diagram of an embodiment of a mobile terminal according to the present invention is shown, where the mobile terminal includes a battery cover 11, a functional component 13, a motherboard upper cover 14, and the above-mentioned seal assembly structure. The battery cover 11 and the mainboard upper cover 14 enclose to form an accommodating space, the sealing combination structure is arranged in the accommodating space, and the functional component 13 is located in the sealing combination structure. The seal assembly includes the above-described seal member 12 and a support member that exists in both a high temperature phase and a low temperature phase. The material and thickness of the supporting member are as described in the first embodiment, and the positional relationship between the supporting member and the sealing member 12 is as described in the first and second embodiments, which are not described herein again.
Wherein, the battery cover 11 is used for supporting the whole structure and shape; the functional part 13 may be an earphone holder or the like; the mainboard upper cover 14, the functional component 13 and the battery cover 11 are matched to realize the function of the whole machine, but gaps exist among the mainboard upper cover, the functional component and the battery cover. In the embodiment of the invention, the sealing element 12 is sleeved outside the functional component 13 to seal the gaps among the three components; the sealing element 12 can be a silica gel sleeve, the hardness is 50A-60A, the outer side wall of the sealing element 12 is provided with a convex rib 15, meanwhile, the convex rib 15 is in interference fit with the battery cover 11 to realize sealing, and the interference magnitude is 0.07-0.15 mm.
Further, in the embodiment of the present invention, a support is disposed on the inner side wall of the sealing member 12 to realize an interference fit between the rib and the battery cover. Specifically, the above-described components of the mobile terminal are assembled at a normal temperature, in which case the low temperature phase support 22 has a flat plate shape or "Jiong" shape. The low temperature phase support member 22 is pressed on the inner side wall of the sealing member 12, or the sealing member 12 is sleeved on the support member, and a gap caused by tolerance exists between the support member and the sealing member 12. The support is preferably made of one-way memory nickel-titanium alloy, and a high-temperature air gun is adopted to heat the sealing combined structure within the temperature range of 55-65 ℃; at this time, the supporter 22 of the low temperature phase is heated and deformed toward the supporter 21 of the high temperature phase. However, due to space limitations, the low-temperature phase support 22 cannot be completely changed to the shape of the high-temperature phase support 21, and only has stress that deforms toward the high-temperature phase, the direction of the stress being indicated by an arrow in fig. 1, 4, or 7. Due to this stress, the support bears against the inner side wall of the seal 12, preventing the ribs 15 on the outer side wall of the seal 12 from moving out of position, and also preventing the seal 12 from deforming. The accumulated tolerance of each part and the sealing element is compensated, the interference of the matching of the battery cover 11 and the sealing element 12 is further ensured, and the sealing effect of the matching clearance between the functional component 13 and the battery cover 11 and the mainboard upper cover 14 is effectively realized.
The mobile terminal of the embodiment of the invention has the following advantages: arranging a low-temperature-phase support piece made of shape memory alloy on the inner side wall of a sealing piece of the mobile terminal, matching a sealing combination structure comprising the sealing piece and the support piece with other parts of the mobile terminal, and then heating at high temperature; after the supporting piece is heated, stress which deforms towards a high-temperature phase is generated, the stress enables the supporting piece to abut against the sealing piece, the convex rib on the outer side wall of the sealing piece is prevented from deforming towards the direction of the supporting piece, accumulated tolerance of each part of the mobile terminal and the sealing piece is compensated, accordingly, sealing effect is achieved, and waterproof performance is achieved.
Example four
Referring to fig. 8, a flow chart of a processing method of the sealing combination structure provided by the present invention is shown.
Step 100, preparing a sealing element, wherein a convex rib is arranged on the outer side wall of the sealing element.
Preferably, the sealing element may be a silicone sleeve, and the volume of an inner cavity of the silicone sleeve is matched with the functional component. Preferably, the inner side wall of the sealing element can be reserved with a position or a concave platform corresponding to the convex rib for arranging the supporting element.
Step 200, preparing the low-temperature phase support member by using the shape memory alloy.
Preferably, the step adopts the platy nickel-titanium alloy with the one-way memory effect to prepare the low-temperature phase support member, and the nickel-titanium alloy is prepared into the platy low-temperature phase support member by a stamping method at a low-temperature state (-15 ℃); or the middle part of the plate-shaped nickel-titanium alloy is made into a flat plate shape by a stamping method in a low-temperature state, the two end parts are made into a equidirectional bent shape by a bending forming process, and the bending angles of the two ends of the supporting piece are consistent with the bending angle of the matching part of the sealing piece.
Specifically, the support piece is a sheet metal stamping piece made of nickel-titanium alloy with one-way memory effect.
And 300, arranging the low-temperature phase supporting piece on the inner side wall of the sealing piece to obtain the sealing combined structure.
In one preferred embodiment, the low-temperature phase support is arranged on the inner side wall of the sealing element at a position corresponding to the convex rib of the outer side wall.
In another preferred embodiment, a concave platform may be provided on the inner sidewall of the sealing member, the low temperature phase supporting member may be provided at a portion of the concave platform corresponding to the rib, and a middle portion of the low temperature phase supporting member may be flat-shaped, and both ends of the low temperature phase supporting member may be bent in the same direction and have the same bending angle as the concave platform.
Step 400, heating the sealing combination structure.
Heating by adopting a high-temperature air gun at the temperature of 55-65 ℃. After the low-temperature phase support piece is heated, stress is generated in the process of high-temperature phase deformation, the support piece is just propped against the inner side wall of the sealing piece by the stress, the convex ribs on the outer side wall of the sealing piece are prevented from moving and displacing, meanwhile, the sealing piece is prevented from deforming, and tolerance accumulation is reduced.
The processing method of the sealing combination structure provided by the embodiment of the invention has the following advantages: the sheet metal stamping part made of nickel-titanium alloy with one-way memory effect is used as a supporting piece, the sealing combination structure comprising the supporting piece and the sealing piece is heated, stress which deforms towards a high-temperature phase is generated after the supporting piece is heated, the stress enables the supporting piece to abut against the sealing piece, tolerance accumulation of the sealing piece is reduced, and a convex rib of the sealing piece is prevented from deforming towards the direction of the supporting piece, so that the sealing effect is achieved.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
The sealing combination structure, the mobile terminal and the processing method of the sealing combination structure provided by the invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (16)
1. A sealing combination structure is characterized in that the sealing combination structure comprises a sealing element and a supporting element made of shape memory alloy, wherein the supporting element has a high-temperature phase and a low-temperature phase;
the outer side wall of the sealing element is provided with a convex rib, and the inner side wall of the sealing element is provided with a low-temperature phase supporting element;
the supporting piece is heated and then deforms at a high temperature and props against the inner side wall of the sealing piece;
the sealing combination structure is applied to a mobile terminal comprising a battery cover, a functional component and a mainboard upper cover.
2. The sealing assembly as claimed in claim 1, wherein the high temperature phase of the support member is in the form of a wave, the wave-shaped support member having a valley portion at a position higher than the end portions;
the low-temperature phase of the supporting piece is flat.
3. The sealing assembly as claimed in claim 2, wherein the inner sidewall of the sealing member having the low temperature phase support member is flat.
4. The sealing assembly as claimed in claim 1, wherein the high temperature phase of the supporting member has a wave shape in a middle portion and opposite flat plate shapes in both end portions, and a valley portion of the middle portion is located at a higher position than the end portions;
the middle part of the support part at the low temperature phase is flat, the two ends of the support part are bent towards the same direction, and the bending angle of the part matched with the inner side wall of the sealing element is consistent.
5. The sealing assembly as claimed in claim 4, wherein the inner sidewall of the seal member having the low temperature phase support member is recessed.
6. The seal assembly of claim 1, wherein the support member is a one-way memory alloy.
7. The seal assembly structure of claim 6, wherein the one-way memory effect alloy comprises a nickel-titanium alloy, a gold-cadmium alloy, or a copper-zinc alloy.
8. The sealing assembly as claimed in claim 1, wherein said shape memory alloy is in the form of a tube, rod or plate.
9. The seal assembly of claim 8, wherein the support member is a sheet metal stamping having a thickness of 0.10mm to 20 mm.
10. The seal assembly of claim 1, wherein a portion of the inner sidewall of the seal corresponding to the rib is provided with a support member for a low temperature phase.
11. The sealing assembly as claimed in claim 1, wherein the outer side wall of the sealing member is provided with a bead longitudinally or circumferentially.
12. The sealing assembly as claimed in claim 1, wherein said sealing member is a silicone sleeve.
13. A mobile terminal, comprising: a battery cover, a functional component, a motherboard upper cover, and the sealed assembly structure of any of claims 1-12, the sealed assembly structure comprising a seal and a support made of a shape memory alloy, the support having a high temperature phase and a low temperature phase;
the outer side wall of the sealing element is provided with a convex rib, and the inner side wall of the sealing element is provided with a low-temperature phase supporting element;
the supporting piece is heated and then deforms at a high temperature and abuts against the inner side wall of the sealing piece.
14. A processing method of a sealing combined structure is characterized by comprising the following steps:
preparing a sealing element, wherein a convex rib is arranged on the outer side wall of the sealing element;
preparing a low-temperature phase support member by using shape memory alloy;
arranging the low-temperature phase support piece on the inner side wall of the sealing piece to obtain the sealing combined structure;
heating the sealed composite structure;
the sealing combination structure is applied to a mobile terminal comprising a battery cover, a functional component and a mainboard upper cover.
15. The process of claim 14, wherein the step of preparing the low temperature phase support using a shape memory alloy comprises:
and stamping the shape memory alloy into a flat-plate-shaped supporting piece in a low-temperature state.
16. The process of claim 14, wherein the step of preparing the low temperature phase support using a shape memory alloy comprises:
under the low temperature state, the shape memory alloy is made into a support part with a flat plate-shaped middle part and a equidirectional bent shape at two end parts by a stamping method and a bending forming method; wherein the bending angles of both ends of the support member are identical to the bending angle of the fitting portion of the sealing member.
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| CN109194781B (en) * | 2018-08-22 | 2021-03-09 | Oppo广东移动通信有限公司 | Support, input/output assembly and mobile device |
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| EP3130826A1 (en) * | 2015-08-14 | 2017-02-15 | Claverham Limited | Seal |
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| CN203516724U (en) * | 2013-09-18 | 2014-04-02 | 潍柴动力股份有限公司 | U-shaped plug based on shape memory effect |
| CN105559619A (en) * | 2014-11-05 | 2016-05-11 | 佛山市顺德区美的电热电器制造有限公司 | Exhaust valve assembly and electric cooker comprising same |
| CN205877221U (en) * | 2016-07-14 | 2017-01-11 | 绍兴上虞恒运通风设备有限公司 | Sealed fire prevention valve |
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